Oval Duct

eehibew · Jan 18, 2009

What section would oval duct be under in the code?

George Stolz · Jan 18, 2009

At the risk of exposing my ignorance, which I often put on display for all to see: what is oval duct? :-?

acrwc10 · Jan 18, 2009

George Stolz said:
At the risk of exposing my ignorance, which I often put on display for all to see: what is oval duct? :-?

Over heated PVC ?

480sparky · Jan 18, 2009

My thinking is it's HVAC.

eehibew · Jan 18, 2009

Oval duct is like squashed down emt. It is used for underplaster extensions usually. It was prevelent in the 60's and early 70's.

tom baker · Jan 18, 2009

Art 382 is nonmetallic extensions. Perhaps this product is obsolete, google comes up with HVAC products

dcspector · Jan 19, 2009

Did or does "Walker Duct" make an oval version?